CMMs are robust and easy to maintain, but they are not completely maintenance-free. Sensitive CMM measurement systems require a certain level of cleanliness. Fine dust particles on probe assemblies or standard ceramic balls can affect measurement accuracy. In addition, the measuring table must be maintained daily. Maintenance measures include regular cleaning and inspection of several components.

Reverse engineering is based on existing products and materials, digesting and absorbing, reforming and innovating, and improving and optimizing the production process.

The measurement method​ is a method to obtain the measurement result according to a given measurement principle.